Last



` March 3l. 1925.

Patented Mar. 31, 1925.

UNITED sTATEs y 1,531,843V eATENT OFFICE.

GEORGE CLAUSING, O'F PORTSMOUTH, OHIO, ASSIGNOR TO THE`VULC`AN LAvSTiCOlVI- IANY, OF PORTSMOUTH, OHIO, A CORPORATIONOF OHIO.

LAST.

Application filed January 23, 1923. Serial No. 614,348.

To a?! whom, it-may concern.' l

Be it known that I, GEORGE CLAUSING, a citizen oi the United States, and a resident of the city oi Portsmouth, in the county of 5 Scioto and State of-Ohio, have invented certain new and useful Improvements in Lasts, ot' which the following is a specification.

This invention relates to animprovement in lasts of the hinge type wherein the fore part and heel part ot' the last are moved about a bearing from extended to collapsed position and vice versa, the parts being held against separation by a link or other suitable device connected to both parts of the last.

The object of the present invention is to provide a last of the character above indicated wherein lost motion or wobble between the two parts of the last when the parts are extended is prevented. In lasts of the type above referred to it is customary to provide an integral knuckle oint or bearing between the two parts of the last. To provide such a structure the block from which the last is made is divided into two parts by an arcuate saw-cut extending transversely of the block, his saw-cut being intercepted by a vertical cut extending through from the bottom of the last. Some of the wood of the last in making the arcuate cut is necessarily removed which permits of more or less lost motion between the two last parts when the parts are in their extended position. l l In the accompanying drawings two embodiments of the present invention have been illustrated,

Fig. 1 showing one embodiment in part sectional elevation; and

Fig. 2 showing a modification.

Referring to Fig. 1 is detail, 1 designates the 'fore part and 2 the heel part of the last. 'lhc last is made from a single block of wood which is cut out as indicated at 3 to pcrluit ol collapsing of the last parts. rIhe block is then cut into two parts, that is into a tore part. and a heel part by an arcuate cut 4 extending transversely of the block and a vertical saw-cut 5 also extendingtransvcrsely oi' the last and initercepting the arcuate cut. In the 'form illustrated cut 4 provides a knuckle 6 on the heel part which cooperates with what may be called a socket 7 in the toe or fore part of the last so that the two parts of the last as they are moved to collapsed or extended position 4move in the socket 7 as a bearing.

The two parts of the last are held against separation by a link 8 which is connected lto the fore part by a pin 9 and to the heel part by apin 10. It is customary in lasts of this type vto so locate the pins 9 and'lO that a line passing through their centers will I fall below the center ofthe knuckle 6 when the last'is` extended and above this point when the last 'is collapsed thereby locking the last parts either in extended or collapsed position as the case may be.

In making the arcuate saw-cut 4some of the wood ot the last is necessarily removed and it has been found in practice that there is more or less lost motion or wobble between the fore part and heelv part of the last due to this fact. In order that this losty motion may be eliminated means have-been provided in the embodiment of the invention as illustrated in Fig. 1 whereby any motion' of the two parts of the last relatively to each other, other than the movement necessary to collapse or extend the last is elimi* nated.

In the embodiment of the invention as illustrated in Fig. 1 this lost motion or wobble is eliminated by providing a strip of libre or other suitable material 11 between a portion of the ball 6 and socket 7 this strip being of the proper thickness to completely fill the space made by the saw in dividing the last into two parts at the point where this fibre or other strip is inserted. The strip must necessarily be interposed between the ball 6 and socket 7 but is not necessarily located where shown in Fig. l. The cut 5 in the present instance not only extends vertically but rearwardly as well as shown at 12 to provide a seat for the strip 11,. The strip, however, extends beyond the end ot this rearwardly extend ing portion of the saw-cut 5 as indicated at 18 so as to bring this portion of the strip between the ball G and bearing 7 to fill up the space left by the saw in cutting out the ball 6 and thereby effectively prevent'any wobble or lost motion of the-two parts of the last relatively to each other.

In I `ig.v 2 the arcuate saw-cut 4 has been -extended beyond its point of intersection stead oit in the rearward,extension of the vertical saw-cutl 5 as illustratedv in Fig. l;

. the resulting structure, however, is the equivalent of that shown in Fig.v l inasmuch as the lstrip lies between the ball 6 and socket 7 in the space left by the saw so as to effectively prevent wobble or lost motion between the two parts of the last.

I claim: v

l. A last divided into a fore part and a heel part along an areuate path and along a vertically extending `path which intercepts the arcuate path, and a member interposed between the two parts of the last and lying partially within said arcuate path `for preventing relative movement of the last parts when the parts are extended.

2. A divided last provided with an arcuate cut and a vertically extending cut intercepting the arcuate cut to divide the last into a fore part and a heel part, said vertically extending cut being extended rearwardly of the heel part, and a resilient member lying within said rearward extension and extending into said arcuate cut taking up lost motion between the last parts when said parts are in extended position.

3. A divided last provided with an arcuate cut and an intercepting vertical cut dividing the last into a fore part and a heel part, said arcuate cut extending into the heel part beyond its point of intersection with the vertical eut, and a resilient member seated in said extension of the arcuate cut and extending along said cut toward the toe of the last beyond the point of intersection of the two cuts for the purpose set forth.

This specification signed this 19th day ot' January, 1923.

GEORGE cLAUsiiNe'. 

